Your Query returns 4 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Cux1NM_00998610090CDP    Cux    Cux-1    Phox2    Cutl1   
Cux1BC05437010090Cux    Phox2    CDP    Cux-1    Cutl1   
Cux1BC01428910090Cux    Phox2    CDP    Cux-1    Cutl1   
Cux1NM_19860210090CDP    Cux    Cux-1    Phox2    Cutl1   

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* OMIM link based on symbol match for human and mouse.

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Text2Knowledge ... Yong Huang 2002